WM-PLOT Q , 25mx0.53mmx10µm

The WM-PLOT Q GC-PLOT column 25mx0.53mm, 10µm, is coated with a porous polymeric adsorbent of the Q class and is available in film thicknesses up to 40 µm. Separation occurs by partitioning into the crosslinked polymer matrix, whose retention depends essentially on molecular size and polarizability. Water elutes as a sharp, early peak and does not interfere with the analysis, which is not the case with molecular sieve and aluminium oxide layers. WM-PLOT Q is used in particular for light gases, carbon dioxide, C1 to C5 hydrocarbons, polar volatile light compounds and the blood alcohol determination according to GA/T 842.

Features and Benefits

• High-performance columns with low bleed
• Standard, MS, HT, and specialty phases
• Nonpolar to highly polar
• WCOT and PLOT versions
• Individual performance testing for each column

Additional Information

The WM series is the high-performance line of the gas chromatography product portfolio and covers demanding routine, GC-MS, and specialty applications. The MS variants feature the same phase chemistry as their respective base phases but are manufactured to stricter specifications, with dedicated surface deactivation and a lower desorption rate. In addition to the classic polysiloxane and wax phases, the series includes application-specific columns tailored to a single analytical method. In PLOT columns, adsorption strength and carrier gas velocity determine the separation, and water in the carrier gas shifts the retention.

Legal Information

WM is a product line of Welch Materials, Inc. The product and phase names mentioned are part of the manufacturer's gas chromatography portfolio.